Improvement in cutting apparatus for harvesters



T. E. PAGE. Cutting Apparatus for Harvesters.

No. 219,756. Patented Sept. 16,1879.

UNITED STATES PATENT QFFICE.

TRUMAN E. PAGE, OF GENOA, ASSIGNOR OF ONE-HALF HISRIGHT TO CHRISTOPHERO. FLETCHER, OF LA OROSSE, WISCONSIN.

IMPROVEMENT IN CUTTING APPARATUS FOR HARVEST ERS.

Specification forming part of Letters Patent No. 219,756, datedSeptember 16, 1879 application filed May 19; 1879.

To all whom it may concern.-

Be it known that I, TRUMAN E. PAGE, of Genoa, in the county of Vernonand State of Wisconsin, have invented a new and useful Improvement intheOutting Apparatus for Harvesters, of which the following is aspecification.

The invention consists in the combination of a connecting-bar with arevolving shaft having screw-shaped cams at each end, which engage withinclined ribs on the under side of the bar, for giving a reciprocatingmovement to the sickle-bar, as hereinafter fully described.-

In the accompanying drawings, which make a part of this specification,Figure 1 is a perspective view of myirnproved cutting apparatus forharvesters. Fig. 2 is a plan view of the sickle-bar G, upper cutters, F,and lower cutters, F, and bed plate, on an enlarged scale. Fig. 3 is atop view of the frame A with the guide-strips f f removed. Fig. at is aperspective view of the connecting-bar H.

Like letters of reference in all the figures indicate the same parts.

A is a supporting-frame for the drivingshat't B and parts connectedtherewith. G is a bed-plate for supporting the sickle-bar and cutters. Eis a plate, having the lower cutters, F, at one edge; and G, thesickle-bar, which is 'iermanently connected at its ends with said plate,there being a slot formed in the middle part of the bar, between it andthe plate, for the reception of the shanks of the sickles F, which areconnected with the bar and plate by means of the pivots a. The heel endsof the shanks have slots b, which turn freely on the pivots a in theusual manner. H is a connecting-bar, which has a joint-connection at oneend with the sickle-bar, as seen in Fig. 1, for giving a reciprocatingmovement thereto. It is operated by means of the driving-shaft B, whichis provided at one end with screw-shaped cams c c, which run aroundone-half the circumference of the shaft in one direction, and from thesecams proceed like cams c c, which run around the other half of thecircumference in the other direction to the place of beginning, as'represented in Fig. 3. Between the cams c c there is a sectionalscrew-thread or cam, d. At the other end of the shaft there are cams c cat the opposite side to that having the cams c c, and continued fromthem are cams 0 c completing the cam form around the whole circumferenceof the shaft 5 and between the cams c 0 there are sectionalscrew-threads or cams d; The connecting-bar H is provided at one endwith inclined lugs c 6, adapted to engage with the camsc c and d, and atthe other end with lugs c e, which are inclined in the other directionand adapted to engage with the cams c c and d. The connecting-bar hasguidestripsff at its edges, and is held down in its place by means ofthe cross-plates g g, that are confined to said strips.

The operation is as follows: The drivingshaft B, being revolved ineither direction, so as to alternately engage the cams c c and d at oneend of the shaft B with the iuclines c e of the connecting-bar H, andthe cams c c and d at the other end of the shaft with the inclines c eat the other end of the bar, and the cams at one end of the shaftrunning in the reverse direction to those at the other end, areciprocating motion is given to the connecting-bar, and through it tothesickle-bar, for operating the lower cutters, F, and the uppercutters, F, to give a reciprocating movement to the lower and uppercutters simultaneously in the longitudinal direction of the sickle-bar,and an oscillatory movement to the upper cutters as they are caused toturn upon. their pivots by the longitudinal movements of the bar.

In consequence of the shanks of the sickles or upper cutters, F, beingpivoted to the sickle-bar G, and the lower cutter-plate, E, andoscillating on the pivots a, thesickles are caused to travel much fasterthan. the lower cutters, whereby a shearing operation is produced.

I claim as my invention- The driving-shaft B, having cams c c d and c cat one end, and cams c c and c c and d at its other end, in combinationwith the connecting-bar H, having inclined lugs c e and c c,substantially in the manner and for the purpose set forth. I

TRUMAN E. PAGE.

Witnesses:

G. O. FLETCHER,

HUGH B. CALAHAN.

